United Kingdom calculator
United Kingdom GHG emissions calculator
Work out your company's carbon footprint with official UK government data, free and in about ten minutes. Built for businesspeople, not sustainability experts.
Local factor notes
What this country estimate uses
Uses UK Government GHG Conversion Factors for Company Reporting 2026 for electricity and common activity data.
Market-based electricity and supplier evidence need a separate review before formal disclosure.
United Kingdom questions
01Does the UK energy and carbon reporting rule apply to my company?
The UK Streamlined Energy and Carbon Reporting rule applies to certain quoted companies, large unquoted companies, and large LLPs. Smaller companies may still receive customer requests, so this tool helps prepare the data conversation.
02What data do I need from utility bills?
Start with electricity kWh, gas usage, the billing period, and the site name. Keep the bill or meter export with the estimate.
03Should I report location-based and market-based electricity?
Many formal methods ask for both when contract data is available. This calculator is location-based and should be paired with supplier evidence before formal reporting.
04Can this calculator support a customer GHG request?
Yes. It gives a first total, a list of sources used, and the data to collect next so you can answer with fewer gaps.
05What is the difference between a first estimate and UK reporting-ready work?
A first estimate helps you understand likely drivers. UK reporting-ready work needs final sites and entities, source file checks, intensity metrics, and review before submission.